The role of relativistic many-body theory in probing new physics beyond the standard model via the electric dipole moments of diamagnetic atoms
文献类型：期刊论文
| 作者 | Das,B. P.1; Sahoo,B. K.2,3 |
| 刊名 | Journal of Physics: Conference Series
 |
| 出版日期 | 2018-06-01 |
| 卷号 | 1041期号:1 |
| ISSN号 | 1742-6588 |
| DOI | 10.1088/1742-6596/1041/1/012014 |
| 英文摘要 | Abstract The observation of electric dipole moments (EDMs) in atomic systems due to parity and time-reversal violating (P,T-odd) interactions can probe new physics beyond the standard model and also provide insights into the matter-antimatter asymmetry in the Universe. The EDMs of open-shell atomic systems are sensitive to the electron EDM and the P,T-odd scalar-pseudoscalar (S-PS) semi-leptonic interaction, but the dominant contributions to the EDMs of diamagnetic atoms come from the hadronic and tensor-pseudotensor (T-PT) semi-leptonic interactions. Several diamagnetic atoms like 129Xe, 171Yb, 199Hg, 223Rn, and 225Ra are candidates for the experimental search for the possible existence of EDMs, and among these 199Hg has yielded the lowest limit till date. The T or CP violating coupling constants of the aforementioned interactions can be extracted by combining the EDM measurements from with atomic and nuclear calculations. In this work, we report the calculations of the EDMs of the above atoms by including both the electromagnetic and P,T-odd violating interactions simultaneously. These calculations are performed by employing relativistic many-body methods based on the random phase approximation (RPA) and the singles and doubles coupled-cluster (CCSD) method starting with the Dirac-Hartree-Fock (DHF) wave function in both cases. The differences in the results from both the methods shed light on the importance of the non-core-polarization electron correlation effects that are accounted for by the CCSD method. We also determine THE electric dipole polarizabilities of these atoms, which have computational similarities with EDMs and compare them with the available experimental and other theoretical results to assess the accuracy of our calculations. |
| 语种 | 英语 |
| 出版者 | IOP Publishing |
| WOS记录号 | IOP:1742-6588-1041-1-012014 |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/13512]  |
| 专题 | 中国科学院武汉物理与数学研究所 |
| 作者单位 | 1.Department of Physics and International Education and Research Center of Science, Tokyo Institute of Technology, 2-12-1 Ookayama Meguro-ku, Tokyo 152-8550, Japan 2.State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China 3.Atomic, Molecular and Optical Physics Division, Physical Research Laboratory, Navrangpura, Ahmedabad 380009, India and |
| 推荐引用方式 GB/T 7714 | Das,B. P.,Sahoo,B. K.. The role of relativistic many-body theory in probing new physics beyond the standard model via the electric dipole moments of diamagnetic atoms[J]. Journal of Physics: Conference Series,2018,1041(1). |
| APA | Das,B. P.,&Sahoo,B. K..(2018).The role of relativistic many-body theory in probing new physics beyond the standard model via the electric dipole moments of diamagnetic atoms.Journal of Physics: Conference Series,1041(1). |
| MLA | Das,B. P.,et al."The role of relativistic many-body theory in probing new physics beyond the standard model via the electric dipole moments of diamagnetic atoms".Journal of Physics: Conference Series 1041.1(2018). |
入库方式： OAI收割
来源：武汉物理与数学研究所
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